编译前的源代码& proguard:
public class IntentSession extends BaseIntentSession {
@Override
public void onResume() {
super.onResume();
mExecutor.exec(getIntent(), this::finish);
}
}
编译后的反编译代码& proguard :(用CFR 0_118反编译)
public class a extends superA {
public void e() {
super.e();
this.c.a(this.j(), b.a((a)this)); // the problematic code here
}
}
现在是编译& proguard之后的关键代码,b
类的反编译代码:
final class b implements c.a {
private a a;
b (a a1) {
this.a = a1;
}
static /* synthetic */ b a(final a a) {
return new b(a);
}
@LambdaForm.Hidden
public void a() {
this.a.finish();
}
}
它仍引用了finish()
方法,该方法已被proguard标记为m()
。
我希望将引用的finish()方法混淆为m(),但这不是正在发生的事情,这就是我的问题。
Proguard并没有警告我,只有在遇到错误的代码时才会在运行时与NoSuchMethodError
崩溃。所以不要告诉我添加像 -dontwarn java.lang.invoke。* 这样的proguard配置,我试过但它没有用。
在混淆过程中,所涉及的类的处理顺序可能是错误的,谁知道呢?
我不想在finish()方法上添加@Keep
注释,这是一个糟糕的解决方案,我不得不担心它,并在将来小心使用方法引用,所以我正在寻找最佳解决方案。
dependencies {
classpath 'com.android.tools.build:gradle:2.2.3'
classpath 'me.tatarka:gradle-retrolambda:3.4.0'
classpath "com.fernandocejas.frodo:frodo-plugin:0.8.3"
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
}
以下是我的proguard-rules.pro
:
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-ignorewarnings
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-dontwarn java.util.**
-keep class java.util.** {*; }
-dontwarn com.android.**
-keep class com.android.** { *; }
-dontwarn android.support.**
-keep class android.support.** { *; }
-keepattributes SourceFile, LineNumberTable
# end common config
##---------------Begin: proguard configuration for Gson ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# Gson specific classes
-keep class sun.misc.Unsafe { *; }
#-keep class com.google.gson.stream.** { *; }
-dontwarn com.google.gson.**
-keep class com.google.gson.** { *; }
-dontwarn com.baidu.util.audiocore.**
-keep class com.baidu.util.audiocore.** { *; }
# Application classes that will be serialized/deserialized over Gson
##---------------End: proguard configuration for Gson ----------
# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
-keep public class * implements java.io.Serializable {*;}
# end Serializable
# ----------------------------
-dontnote
-dontwarn com.xiaomi.push.service.XMPushService
#for speech sdk
-keep class com.orion.speech.** {*;}
-keep class com.orion.speech.audio.** {*;}
#end for speech sdk
#for xiaomi
-keep class PushReceiver {*;}
-keep class com.xiaomi.push.**{*;}
#end for xiaomi
#for retrofit
-dontwarn sun.misc.Unsafe
-dontwarn okio.**
# Platform calls Class.forName on types which do not exist on Android to determine platform.
-dontnote retrofit2.Platform
# Platform used when running on RoboVM on iOS. Will not be used at runtime.
-dontnote retrofit2.Platform$IOS$MainThreadExecutor
# Platform used when running on Java 8 VMs. Will not be used at runtime.
-dontwarn retrofit2.Platform$Java8
# Retain generic type information for use by reflection by converters and adapters.
-keepattributes Signature
# Retain declared checked exceptions for use by a Proxy instance.
-keepattributes Exceptions
#end for retrofit
#for lambda
-dontwarn java.lang.invoke.*
#end for lambda
#for okhttp
-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
-dontwarn okhttp3.**
#end for okhttp
#for RxJava
-keep class rx.schedulers.Schedulers {
public static <methods>;
}
-keep class rx.schedulers.ImmediateScheduler {
public <methods>;
}
-keep class rx.schedulers.TestScheduler {
public <methods>;
}
-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
long producerIndex;
long consumerIndex;
}
-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef {
rx.internal.util.atomic.LinkedQueueNode producerNode;
}
-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueConsumerNodeRef {
rx.internal.util.atomic.LinkedQueueNode consumerNode;
}
# end for RxJava
#for bugly
-dontwarn com.tencent.bugly.**
-keep public class com.tencent.bugly.**{*;}
#end for bugly
#----------------android
# this indicate the case of using APIs higher than minSDK (API 8)
-dontwarn android.**
# ---------------------------------------
# TODO: can be reduce if we have more understanding about Service and AIDL
-keep public class android.service.notification.** {*;}
-keepattributes *Annotation*,EnclosingMethod
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepattributes *Annotation*,EnclosingMethod,Signature
-keep interface android.content.pm.**{*;}
-keep class android.content.pm.**{*;}
-keep class android.os.Process{*;}
-dontwarn com.android.internal.os.*
-keep class android.support.v4.os.**{*;}
-keepclassmembers class * {
@android.support.v4 *;
}
# cmcm support
-keep class com.cmcm.support.jni.** { *; }
答案 0 :(得分:2)
解决-keep
无法修复的这些错误是 REAL 的痛苦,我唯一能够取得进展的方法就是遵循以下策略:
E.G。
确认这是一个优化问题
-dontoptimize
而不是-optimizations
字符串重建和测试!method/*, !code/*, !class/*, !field/*
向后处理优化排除类别,直到您确定哪个排除项使问题消失为止!method/*
,从!method/marking/*
开始,然后如果有效则尝试!method/marking/final
。如果有效,那么你已经找到了最低限度的排除)这很可能是您使用过的其中一个库的Proguard规则中的错误,或者您正在使用的Proguard版本中的 (我已经看到了两者)所以也尝试更新两者。
答案 1 :(得分:0)
大多数情况下,您图书馆的网站/ github提供了必要的预备规则,例如retrolamda:
-dontwarn java.lang.invoke.*
-dontwarn **$$Lambda$*
Proguarding是一个跟踪错误的故事。检查您的日志记录以查看哪个库,类或组件导致问题,并将小心地添加到规则中:)。
你的错误NoSuchMethod具体:
您的代码可能正在调用myClass.getMethod之类的东西 动态地找到一些方法。由于ProGuard无法始终检测到 这自动,你必须保持丢失的方法使用 适当的保险选项:
-keepclassmembers class mypackage.MyClass {void myMethod(); }
答案 2 :(得分:0)
当一个类在运行时通过反射寻找或直接调用给定参数的方法时,会发生这种情况。 Proguard不会对此提出警告,因为在编译时,混淆的类和使用者类之间没有链接。你可以有像
这样的东西public class AbstractbaseSomething{
public abstract void doStuff();
}
public class iDoStuff{
public void letsGo(Object o){
Method method = o.getClass().getDeclaredMethod("doStuff");
// do stuff with the method
}
}
由于引用该方法使用了一个带有名称的字符串,proguard没有检测到它,并且在运行时,您会遇到崩溃。假设您无法修改代码,唯一的解决方案是避免模糊方法和类。
(您可以在Ormlite-Android中查看更实际的示例)
答案 3 :(得分:0)
仔细重新检查后,我得出结论,这可能不是一个关于proguard的错误,只有gradle。
首先,我使用通用接口编码样式来源代码:
mExecutor.exec(getIntent(), new MyInterface() {
@Override
public void execute() {
finish();
}
});
然后我清理构建缓存并重建:
./gradlew clean
./gradlew :app:assembleRelease
我执行输出发布应用程序并使其到达有问题的代码,它可以正常运行。
这次我转向方法参考:
mExecutor.exec(getIntent(), this::finish);
但是在重新构建之前我没有清理构建缓存:
./gradlew :app:assembleRelease
现在重新执行崩溃:
05-22 11:35:33.870 D/AndroidRuntime( 631): Shutting down VM
05-22 11:35:37.470 E/AndroidRuntime( 631): FATAL EXCEPTION: main
05-22 11:35:37.470 E/AndroidRuntime( 631): Process: com.cmrobot.assistant, PID: 631
05-22 11:35:37.470 E/AndroidRuntime( 631): java.lang.NoSuchMethodError: com.session.a.finish
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.b.executeDone(Unknown Source)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.base.a.a(BaseIntentExecutor.java:99)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.base.a.e(BaseIntentExecutor.java:76)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.base.a.a(BaseIntentExecutor.java:67)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.cmd.general.volume.VolumeChangeExecutor.b(VolumeChangeExecutor.java:28)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.cmd.general.volume.a.a(LowerVolumeExecutor.java:63)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.base.a.d(BaseIntentExecutor.java:44)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.newsessions.base.b.run(Unknown Source)
05-22 11:35:37.470 E/AndroidRuntime( 631): at android.os.Handler.handleCallback(Handler.java:733)
05-22 11:35:37.470 E/AndroidRuntime( 631): at android.os.Handler.dispatchMessage(Handler.java:95)
05-22 11:35:37.470 E/AndroidRuntime( 631): at android.os.Looper.loop(Looper.java:136)
05-22 11:35:37.470 E/AndroidRuntime( 631): at android.app.ActivityThread.main(ActivityThread.java:5001)
05-22 11:35:37.470 E/AndroidRuntime( 631): at java.lang.reflect.Method.invokeNative(Native Method)
05-22 11:35:37.470 E/AndroidRuntime( 631): at java.lang.reflect.Method.invoke(Method.java:515)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
05-22 11:35:37.470 E/AndroidRuntime( 631): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
05-22 11:35:37.470 E/AndroidRuntime( 631): at dalvik.system.NativeStart.main(Native Method)
为了确认它是构建缓存原因,我清理然后重新构建基本上改变了代码:
./gradlew clean
./gradlew :app:assembleRelease
在后记应用程序中崩溃了。
我尝试创建一个演示项目来证明这个问题,但该项目并没有弹出崩溃,只在我的高效项目中。